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WO2011054696A3 - Field device for process instrumentation - Google Patents

Field device for process instrumentation Download PDF

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Publication number
WO2011054696A3
WO2011054696A3 PCT/EP2010/066108 EP2010066108W WO2011054696A3 WO 2011054696 A3 WO2011054696 A3 WO 2011054696A3 EP 2010066108 W EP2010066108 W EP 2010066108W WO 2011054696 A3 WO2011054696 A3 WO 2011054696A3
Authority
WO
WIPO (PCT)
Prior art keywords
analog output
output signal
unit
monitoring
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2010/066108
Other languages
German (de)
French (fr)
Other versions
WO2011054696A2 (en
Inventor
Steen Moellebjerg Matzen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to CN201080048561.9A priority Critical patent/CN102597704B/en
Priority to US13/503,803 priority patent/US9194718B2/en
Priority to EP10775766.8A priority patent/EP2494313B1/en
Publication of WO2011054696A2 publication Critical patent/WO2011054696A2/en
Publication of WO2011054696A3 publication Critical patent/WO2011054696A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G01D3/028—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure
    • G01D3/036—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring
    • G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
    • G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
    • G05B23/0224—Process history based detection method, e.g. whereby history implies the availability of large amounts of data
    • G05B23/0227—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions
    • G05B23/0235—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions based on a comparison with predetermined threshold or range, e.g. "classical methods", carried out during normal operation; threshold adaptation or choice; when or how to compare with the threshold
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423—Input/output
    • G05B19/0425—Safety, monitoring
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/25—Pc structure of the system
    • G05B2219/25428—Field device
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/33—Director till display
    • G05B2219/33331—Test, diagnostic of field device for correct device, correct parameters
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring
    • G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
    • G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
    • G05B23/0224—Process history based detection method, e.g. whereby history implies the availability of large amounts of data
    • G05B23/0227—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions
    • G05B23/0237—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions based on parallel systems, e.g. comparing signals produced at the same time by same type systems and detect faulty ones by noticing differences among their responses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

The invention relates to a field device for process instrumentation, in particular a measurement transducer (1), having an analog output (30) to which a two-wire line (10, 11) can be connected for transmitting an analog output signal (7). A unit (12a, 12b, 12c, 12d) galvanically separates the processor (5) from an analog output circuit. A read-back channel (12c, 15) for a pulse-width modulated digital signal (13), which is tapped behind an element (12b) for galvanic separation, is provided for monitoring the generation of the analog output signal (7), and a unit (18, 19) is provided for monitoring the analog output signal (7) for maintaining a specifiable maximum deviation from a reference signal (17), which is generated in the same manner as the analog output signal (7) by low-pass filtering from the pulse-width modulated digital signal (13). The novel monitoring unit has the advantage that, in particular in case of transient signals, error states can be detected more quickly and that appropriate measures for reacting to error states can therefore be taken in less time.
PCT/EP2010/066108 2009-10-26 2010-10-26 Field device for process instrumentation Ceased WO2011054696A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201080048561.9A CN102597704B (en) 2009-10-26 2010-10-26 Field device for process instrumentation
US13/503,803 US9194718B2 (en) 2009-10-26 2010-10-26 Field device for process instrumentation
EP10775766.8A EP2494313B1 (en) 2009-10-26 2010-10-26 Field device for process instrumentation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009050645.4 2009-10-26
DE102009050645A DE102009050645A1 (en) 2009-10-26 2009-10-26 Field device for process instrumentation

Publications (2)

Publication Number Publication Date
WO2011054696A2 WO2011054696A2 (en) 2011-05-12
WO2011054696A3 true WO2011054696A3 (en) 2011-11-24

Family

ID=43796815

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/066108 Ceased WO2011054696A2 (en) 2009-10-26 2010-10-26 Field device for process instrumentation

Country Status (5)

Country Link
US (1) US9194718B2 (en)
EP (1) EP2494313B1 (en)
CN (1) CN102597704B (en)
DE (1) DE102009050645A1 (en)
WO (1) WO2011054696A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011082018A1 (en) * 2011-09-01 2013-03-07 Siemens Aktiengesellschaft Method for operating a field instrument for process instrumentation and field device
CA2873034C (en) * 2012-05-29 2019-03-12 Rosemount Inc. Process control loop current verification
DE102012106375A1 (en) 2012-07-16 2014-01-16 Endress + Hauser Wetzer Gmbh + Co Kg Method and device for diagnosing a communication channel
KR101338674B1 (en) * 2012-08-10 2013-12-19 엘에스산전 주식회사 HART analog input module with differential inputs
DE102014101945A1 (en) * 2013-12-23 2015-06-25 Endress + Hauser Gmbh + Co. Kg Transmitter with monitoring function
DE102014102021A1 (en) * 2014-02-18 2015-08-20 Endress + Hauser Gmbh + Co. Kg Field device of automation technology
US10068453B2 (en) 2016-09-06 2018-09-04 Yokogawa Electric Corporation Analog output diagnosis tool
CN109428585B (en) 2017-08-31 2022-09-06 浙江海利普电子科技有限公司 Control circuit based on optical coupler and method thereof
DE102019106566B3 (en) * 2019-03-14 2020-09-10 Samson Aktiengesellschaft Configuration of a two-pole input

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1192614B1 (en) * 1999-07-02 2003-01-08 Siemens Aktiengesellschaft Measuring transducer having a corrected output signal
DE102007059847A1 (en) * 2007-12-12 2009-06-18 Siemens Ag Field device for process instrumentation

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1366365A (en) * 1971-11-09 1974-09-11 Licentia Gmbh Disortion reduction in directional radio links
US4783659A (en) * 1986-08-22 1988-11-08 Rosemount Inc. Analog transducer circuit with digital control
JPH0775604A (en) 1993-09-08 1995-03-20 Ykk Kk Method and apparatus for manufacturing fastener chain with separable bottom end stop
US5523676A (en) * 1994-03-31 1996-06-04 Delco Electronics Corp. Sample and hold method and apparatus for sensing inductive load current
US5705978A (en) 1995-09-29 1998-01-06 Rosemount Inc. Process control transmitter
DE10202028A1 (en) 2002-01-18 2003-07-24 Endress & Hauser Gmbh & Co Kg Transmitter for detecting a physical measured variable and for converting it into an electrical variable uses signal processors to reshape the electrical variable into a test signal
JP5003134B2 (en) * 2006-01-10 2012-08-15 日本電気株式会社 Amplifier
DE102006024742A1 (en) 2006-05-26 2007-12-06 Siemens Ag transmitters
DE102007022991A1 (en) * 2007-05-15 2008-11-20 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Signal monitoring device for temporary use in a field device of process automation technology
DE102007046560A1 (en) * 2007-09-28 2009-04-02 Siemens Ag Field device with an analog output

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1192614B1 (en) * 1999-07-02 2003-01-08 Siemens Aktiengesellschaft Measuring transducer having a corrected output signal
DE102007059847A1 (en) * 2007-12-12 2009-06-18 Siemens Ag Field device for process instrumentation

Also Published As

Publication number Publication date
US9194718B2 (en) 2015-11-24
US20120278042A1 (en) 2012-11-01
CN102597704B (en) 2015-04-29
WO2011054696A2 (en) 2011-05-12
EP2494313B1 (en) 2015-04-01
EP2494313A2 (en) 2012-09-05
CN102597704A (en) 2012-07-18
DE102009050645A1 (en) 2011-04-28

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